Chromium(CAS 7440-47-3)
| Purity | Grade | Package | Stock | Price | Quantity |
| 99%,<45μm,powder | RG | 25G | In Stock | 5 USD
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| 99%,<45μm,powder | RG | 100G | In Stock | 18 USD
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| 99%,<45μm,powder | RG | 500G | In Stock | 51 USD
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| 99%,<45μm,powder | RG | 2.5KG | In Stock | 330 USD
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| 99%,<45μm,powder | RG | 10KG | In Stock | 1209 USD
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| 99.5%,-100mesh,powder | RG | 25G | In Stock | 6 USD
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| 99.5%,-100mesh,powder | RG | 100G | In Stock | 12 USD
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| 99.5%,-100mesh,powder | RG | 500G | In Stock | 30 USD
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| 99.5%,-100mesh,powder | RG | 2.5KG | In Stock | 231 USD
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| 99.5%,-100mesh,powder | RG | 10KG | In Stock | 910 USD
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| 99.5%,200mesh,powder | RG | 25G | In Stock | 6 USD
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| 99.5%,200mesh,powder | RG | 100G | In Stock | 12 USD
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| 99.5%,200mesh,powder | RG | 500G | In Stock | 33 USD
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| 99.5%,200mesh,powder | RG | 2.5KG | In Stock | 231 USD
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| 99.5%,200mesh,powder | RG | 10KG | In Stock | 909 USD
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| 99.5%,300mesh | RG | 25G | In Stock | 5 USD
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| 99.5%,300mesh | RG | 100G | In Stock | 17 USD
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| 99.5%,300mesh | RG | 500G | In Stock | 50 USD
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| 99.5%,300mesh | RG | 2.5KG | In Stock | 339 USD
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| 99.5%,300mesh | RG | 10KG | In Stock | 1228 USD
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| 99.9%,Diameter 1cm-3cm | Extra Pure | 100G | In Stock | 7 USD
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| 99.9%,Diameter 1cm-3cm | Extra Pure | 500G | In Stock | 16 USD
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| 99.9%,Diameter 1cm-3cm | Extra Pure | 2.5KG | In Stock | 81 USD
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| 99.9%,Diameter 1cm-3cm | Extra Pure | 10KG | In Stock | 502 USD
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| 99.95%,-300mesh,powder | Extra Pure | 25G | In Stock | 11 USD
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| 99.95%,-300mesh,powder | Extra Pure | 100G | In Stock | 15 USD
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| 99.95%,-300mesh,powder | Extra Pure | 500G | In Stock | 66 USD
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| 99.95%,-300mesh,powder | Extra Pure | 2.5KG | In Stock | 264 USD
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| 99.95%,-300mesh,powder | Extra Pure | 10KG | In Stock | 1515 USD
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| 99.95%,200mesh | Extra Pure | 25G | In Stock | 11 USD
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| 99.95%,200mesh | Extra Pure | 100G | In Stock | 15 USD
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| 99.95%,200mesh | Extra Pure | 500G | In Stock | 67 USD
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| 99.95%,200mesh | Extra Pure | 2.5KG | In Stock | 265 USD
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| 99.95%,200mesh | Extra Pure | 10KG | In Stock | 1534 USD
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| 99.99% | Extra Pure | 5G | In Stock | 6 USD
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| 99.99% | Extra Pure | 25G | In Stock | 20 USD
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| 99.99% | Extra Pure | 100G | In Stock | 68 USD
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| 99.99% | Extra Pure | 500G | In Stock | 278 USD
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| 99.99%,-325 mesh | Extra Pure | 25G | In Stock | 9 USD
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| 99.99%,-325 mesh | Extra Pure | 100G | In Stock | 25 USD
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| 99.99%,-325 mesh | Extra Pure | 500G | In Stock | 99 USD
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| 99.99%,-325 mesh | Extra Pure | 2.5KG | In Stock | 369 USD
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| granular,99.95%,1-3mm | Extra Pure | 25G | In Stock | 9 USD
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| granular,99.95%,1-3mm | Extra Pure | 100G | In Stock | 22 USD
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| granular,99.95%,1-3mm | Extra Pure | 500G | In Stock | 59 USD
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| granular,99.95%,1-3mm | Extra Pure | 2.5KG | In Stock | 268 USD
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| granular,99.95%,1-3mm | Extra Pure | 10KG | In Stock | 937 USD
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Available NMR Spectrum
Verified In Stock
Fast Shipping ISO 9001
Quality System
Applications of 7440-47-3
Chromium has numerous applications across various industries:
- Stainless Steel Production: Chromium is a key alloying element that enhances corrosion resistance.
- Chrome Plating: Used for decorative and protective coatings on automotive parts and household fixtures.
- Dyes and Pigments: Chromium compounds provide vibrant colors for paints and textiles.
- Tanning Agents: Chromium(III) salts are widely used in leather tanning processes.
- Catalysts: Employed in various
Physical and chemical properties of 7440-47-3
Boiling Point |
4788 °F |
|---|---|
carcinogen classification |
3 (Vol. Sup 7, 49) 1990 |
Density |
7.14 |
Exact Mass |
51.94050 |
Flash Point |
50 °F |
Melting Point |
3452 °F |
Merck |
13,2252 |
Molecular Formula |
Cr |
Molecular Weight |
51.99610 |
Odor |
Odorless |
pH |
Bivalent chromium compounds are basic; trivalent chromium compounds are amphoteric; hexavalent chromium compounds are acidic |
resistivity |
12.7 μΩ-cm, 20°C |
Stability |
Stable. Incompatible with carbonates, strong bases, mineral acids, lithium, sulfur dioxide, strong acids. |
Storage condition |
no restrictions. |
Vapour Pressure |
0 mmHg (approx) |
Water Solubility |
Insoluble in water. |
Retrosynthesis analysis of 7440-47-3
Q&A for CAS 7440-47-3
1. How can I verify product quality?
Every batch of our Chemical Reagents is tested to meet ISO 9001 standards. We provide COA & NMR & SDS Provided with each shipment. Batch COA available for verification, and third-party retesting is supported. A full refund is offered if our data is incorrect.
2. What is the delivery time?
Orders from Ready stock / In stock items typically Ships Tomorrow via Fast Shipping via FedEx/DHL/UPS. International deliveries usually arrive within 7 business days, subject to customs clearance.
3. What if the received product doesn’t meet quality standards?
If your Lab Grade Chemical Reagents do not match the Batch COA available, we will issue a replacement or a full refund upon verification.
4. Are hazardous labels included? How is safe shipping ensured?
Hazardous products are labeled and packaged following international regulations. We provide SDS Provided with all hazardous shipments to ensure safe and compliant transport.
5. Do you offer technical support?
Yes. Our Lab Supplier team is available to assist with questions about product usage, storage, Lab Grade requirements, applications, and more.
6. Are volume discounts available?
Yes. For bulk orders of Chemical Reagents, we offer competitive pricing. Submit a quotation request and we’ll provide a tailored offer.
7. Do you provide samples?
Yes, samples are available for selected Lab Grade products. Please submit a request to confirm availability and specifications.
8. Do you have products in stock?
Yes. Items labeled In stock / Ready stock on our website are available for immediate shipment, usually within 1–2 business days. Large packs or custom specifications require lead time confirmation.
9. Can you customize purity or packaging?
Yes. We support customization of Lab Grade purity, packaging size, and special testing requirements. Share your needs and we’ll provide a tailored solution.
10. Is the COA consistent with the shipped batch?
Yes. Batch COA available matches the actual shipment. COAs shown online are for reference or from previous batches.
11. Do you support long-term supply agreements?
Yes. We offer Lab Supplier services for stable batch consistency, pricing agreements, and safety stock for long-term customers to ensure uninterrupted supply.
12. What payment methods do you accept?
We accept Pay Local Currency via bank transfer (T/T), PayPal, and other methods. Credit terms are available for qualified long-term partners.
Download SDS of 7440-47-3
Pictograms |
![]() ![]() |
|---|---|
Signal Word |
Danger |
Hazard Statements |
H317 May cause an allergic skin reaction H319 Causes serious eye irritation H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled |
Safety Data Sheet |
Download COA of 7440-47-3
Operate under the ISO 9001 system

